
3 6 c m
40cm
actual image size: 32cm x 28cm
Description
This early letterpres uses a simple screw to print letters. The screw moves a plate that preses a sheet of paper onto inked metal letters. The small force used to turn the screw exerts a much larger force on the paper.
Image Details
Image Ref.
10233287
© Science Museum / Science & Society Picture Library